Woodbury County Roadgrade Dam 18-87-44 is an earth dam located in Woodbury County, Iowa, built in 1988. It carries a Low hazard potential classification.
Dam profile
NID height · 44 ft44 ft tall and 300 ft long, taller than 89% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Woodbury County Roadgrade Dam 18-87-44
Woodbury County Roadgrade Dam 18-87-44 is a dam in Woodbury, Iowa. The dam is owned by Woodbury County Board of Supervisors (local government). It impounds the E. Branch Wolf Creek near Garretson Ditch.
The dam stands 44 feet tall and stretches 300 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 194 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1988, the structure is 38 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
At 44 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Iowa |
| County | Woodbury |
| Nearest City | Garretson Ditch |
| River/Stream | E. Branch Wolf Creek |
| Coordinates | 42.34950, -96.01910 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 300 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 194 acre-ft |
| Max Storage | 194 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 12 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Woodbury County Board of Supervisors |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02448 |
| Federal ID | IA02448 |
| More Info | State Dam Safety Program |